Identification of Larvicide-Resistant Catch Basins from Three Years of Larvicide Trials in a Suburb of Chicago, IL. (January 2014)

• Record Type: Journal Article
• Authors: Harbison, Justin E.; Sinacore, James M.; Henry, Marlon; Xamplas, Christopher; Dugas, Lara R.; Ruiz, Marilyn O'Hara
• Is Part Of: Environmental health insights. Volume 8(2014)Supplement 2
• Publication Date: 2014-01
• Subjects: larvicide -- catch basin -- mosquitoes -- West Nile virus; Environmental health -- Periodicals; Health risk assessment -- Periodicals; Environmental Health; Risk Assessment; Environmental health; Health risk assessment; Electronic journals; Periodicals; Fulltext; Internet Resources; Periodicals; Periodicals; 613.105
• DOI: 10.4137/EHI.S16014
• Languages: English
• ISSNs: 1178-6302

Abstract

The tens of thousands of catch basins found in many urban areas are a primary target of local vector control agencies for seasonal application of extended-release larvicides. A concern with using larvicides in these structures is that active ingredients can be hampered by high flows, debris, and sediment, all of which are common to these structures. As such a certain proportion of basins may be "resistant" to larvicide treatments due to site specific characteristics that may promote these and other factors that hinder larvicide action and/or promote mosquito infestation. Analyses from three years of larvicide efficacy trials suggest that over a quarter of basins in the study area may not be receiving adequate protection from a single dose of larvicide that is routinely applied. Implications of increasing the dose and/or toxicity of larvicide treatments are discussed further.